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07-03-2020
Mathematics

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Express (sin 67° + cos 75°) in terms of trigonometric ratios of the angle
between 0° and 45°.
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AlphaStorm AlphaStorm

07-03-2020

Answer:

cos23 + sin15

Step-by-step explanation:

sinQ = cos(90-Q)

cosQ = sin(90-Q)

thus = sin67+cos75=

cos(90-67) + sin(90-75)

= cos23 + sin15

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